var str = '你好呀';
var num = 123;
var bool = true;
var n = [1, 2, 3];
var un = undefined;
var nu = null;
//数组的每一个成员都是number类型
var arr1 = [1, 2, 3, 4];
var arr2 = ['a', 'b', 'c', 100, true];
var arr3 = [1, 2, 3, 4];
var arr4 = ['a', 'b', 10];
function fun(a, b) {
    var c = a + b;
}
fun(1, 2);
function fun2(o) {
}
fun2({ a: 1 });
var obj = {
    message: '成功',
    data: {
        list: ['a', 'b', 'c']
    },
    success: true
};
